Manual Retraction of the Thrust Reverser Translating Sleeves [IAE]

TASK 78-32-00-860-011-A
Manual Retraction of the Thrust Reverser Translating Sleeves

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 400
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
This task supplies the data to manually translate the thrust reverser translating sleeves to the retracted (stowed) position.
The task that follows is to be used when the thrust reverser translating sleeves have been manually extended.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
IAE1N20049	2	PIN - LOCKOUT ACTUATOR

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V02-147)	lockwire

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
413AL, 437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
423AL, 447AL, 448AR, 461AL, 462AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-31-00-710-041-A	Operational Test of the Thrust Reverser System with the CFDS
TASK 78-31-00-710-041-A-02	Operational test of the Thrust Reverser without the CFDS and Engine Running
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
TASK 78-32-01-400-010-A	Installation of the Left Thrust Reverser Half - Eng No. 1
TASK 78-32-02-400-010-A	Installation of the Left Thrust Reverser Half - Eng No. 2
TASK 78-32-03-400-010-A	Installation of the Right Thrust Reverser Half - Eng No. 1
TASK 78-32-04-400-010-A	Installation of the Right Reverser Half - Eng. No. 2
Thrust Reverser Locking Actuator
Thrust Reverser Non-Return Valve (3011KM)

3. Job Set-up
Subtask 78-32-00-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).

Subtask 78-32-00-010-062-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the pylon access panels are removed:
(a) FOR [1000EM1] (ENGINE-1)
413AL
(b) FOR [1000EM2] (ENGINE-2)
423AL
(3) Make sure that the thrust reverser doors are closed: (Ref. AMM TASK 78-32-00-410-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 78-32-00-040-052-A ** ON A/C NOT FOR ALL

C. Deactivate the Thrust Reverser

WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated (Ref. AMM TASK 78-30-00-040-012).

Subtask 78-32-00-420-061-A ** ON A/C NOT FOR ALL

D. Put the locking actuators in the unlocked position

Thrust Reverser Locking Actuator ** ON A/C NOT FOR ALL

(1) Move the lock levers (65) on the left and right locking actuators (64) aft to the unlocked position and install the IAE1N20049 PIN - LOCKOUT ACTUATOR, (67) to hold the lock levers in the unlocked position.

Subtask 78-32-00-420-062-A ** ON A/C NOT FOR ALL

E. Put the non-return valve in the by-pass position

Thrust Reverser Non-Return Valve (3011KM) ** ON A/C NOT FOR ALL

(1) Remove the lockwire that safeties the lever (71) in the by-pass position.
(2) Move the lever (71) of the non-return valve (70) to the by-pass position.

4. Procedure
Subtask 78-32-00-410-054-A ** ON A/C NOT FOR ALL

CAUTION: DO NOT USE POWER TOOLS IN THE MANUAL DRIVE SOCKETS TO MOVE THE THRUST REVERSER TRANSLATING SLEEVE. TOO MUCH TORQUE COULD CAUSE DAMAGE TO THE TRANSLATING SLEEVE MECHANISM. THE MAXIMUM TORQUE PERMITTED DURING RETRACTION IS 350 LBF IN. (3,96 MDAN).

CAUTION: DO NOT RETRACT THE THRUST REVERSER TRANSLATING SLEEVES WITH THE THRUST REVERSER HALVES OPEN. DAMAGE TO THE TRANSLATING SLEEVES, SYNCHRONOUS CABLES AND THE HINGE ACCESS PANELS OF THE THRUST REVERSER COULD OCCUR. CLOSE THE THRUST REVERSER HALVES BEFORE YOU RETRACT THE TRANSLATING SLEEVES.

A. Retract the translating sleeve

Thrust Reverser Locking Actuator ** ON A/C NOT FOR ALL

NOTE: You may need to turn and align the manual drive rods (protruding square shafts) before you can push the square drive into the manual drive. The socket end of your 0.375 in. square drive is a convenient tool to use for this purpose.

NOTE: The manual drive rods have a strong return spring to ensure the manual drives disengage after you use them. You must continue to push the manual drive rods in to maintain engagement while you turn the square drives.

(1) Put a 0.375 in. square drive in to the manual drive socket (66) of the left and right thrust reverser halves.
(2) Push the square drive into engage the internal actuator drives. For the left thrust reverser half, turn the square drive counterclockwise. For the right thrust reverser half, turn the square drive clockwise.

NOTE: Use the manual drives on the left and right thrust reverser halves at the same time, to retract (stow) the translating sleeves.

(3) Remove the square drives.

5. Close-up
Subtask 78-32-00-420-050-A ** ON A/C NOT FOR ALL

A. Put the locking actuators in the locked position

Thrust Reverser Locking Actuator ** ON A/C NOT FOR ALL

CAUTION: THE LOCKING ACTUATOR LOCK LEVERS MUST BE IN THE FORWARD LOCKED POSITION FOR FLIGHT OPERATION.

(1) Remove the lockout pins (67) from the lock levers (65) of the left and the right locking actuators (64) and move the lock levers forward to the locked position.
(2) Put the non-return valve (70) in the NORMAL position

Thrust Reverser Non-Return Valve (3011KM) ** ON A/C NOT FOR ALL

(3) Move the lever (71) to the normal position.
(4) Safety of the lever.

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(a) Safety the lever (71) to the body of the non-return valve (70) with the lockwire (Material No.V02-147) .

Subtask 78-32-00-410-060-A ** ON A/C NOT FOR ALL

B. Install the pylon access panels
(1) FOR [1000EM1] (ENGINE-1)
413AL
(2) FOR [1000EM2] (ENGINE-2)
423AL

Subtask 78-32-00-410-055-A ** ON A/C NOT FOR ALL

C. Install the applicable thrust reverser half hinge access panels (Ref. AMM TASK 78-32-01-400-010) (Ref. AMM TASK 78-32-02-400-010) (Ref. AMM TASK 78-32-03-400-010) (Ref. AMM TASK 78-32-04-400-010)

NOTE: This step is only necessary if the hinge access panels were removed during the manual extension task.

Subtask 78-32-00-440-054-A ** ON A/C NOT FOR ALL

D. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 78-32-00-410-056-A ** ON A/C NOT FOR ALL

E. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).

Subtask 78-32-00-710-060-A ** ON A/C NOT FOR ALL

F. Operational Test
(1) Do an operational test of the thrust reverser system (Ref. AMM TASK 78-31-00-710-041).

NOTE: As an alternative procedure, you can do the operational test without the CFDS: (Ref. AMM TASK 78-31-00-710-041).

[Rev.10 from 2021] 2026.04.01 03:52:03 UTC